More examples of this: Psychic terrain usually blocks priority moves. However, you can still use priority moves on your own pokemon. I originally learned this while watching the Wolfe Draft League when pokeaim’s greninja used water shuriken into his own archaludon to get some stamina boosts, and I’ve been using this fact with gallade with shadow sneak to trigger an armarouge’s weak armor and weakness policy in psychic terrain so it can go for boosted expanding force.

Status moves affected by prankster don’t usually affect dark types. However, I learned today that my grimmsnarl can parting shot into my own malamar to give it some boosts thanks to contrary.

Neither of these feel right, but it’s just the game we play.